Improvement in cultivators



VD. s.; 6L. L. ROGERS.

4 Cultivator-.Teth. No. 19,584. y Famed Mar. 9. :858

NTTED STATES PATENT Omtrent@ D. ROGERS, S. ROGERS, AND L. ROGERS, OF PITTSBURG, PENNSYLVANIA.

IM PROAVEMENI IN CULTIVATO RS.

specification forming partA of Letters Patent No. 19,584, date March 9, 1ste.

To all whom it may concern:

Be it known that we, D. B. ROGERS, SEY- MOUR Roenes, :and LUMAN ROGERS, of theA city of Pittsburg, county of Allegheny, State of Pennsylvania, have invented new and useful Improvements in the construction of Cultivators; and we do hereby declare the following to be a full and exact description thereof, reference being had to the accompanying drawings, forming a part of this description, in which- Figure 1 represents sectional pieces of the frame to hold the tooth. Fig. 2 represents the cultivatortooth. Fig. 3 represents the same pie-ces seen in Fig. l brought together with the cultivatorltooth between them, and shows the manner of securing the tooth in the frame. Fig. 4 represents the gage-irons separate, and Fig. 4 the same put together, as when in use. Fig. 5 represent the braces and spring-clamp.

Fig. 6 represents the standards. Fig. 7 represents a cultivator complete, showing the application of ourimprovements in the construction thereof', and shows the arrangement of the braces, standards, clamp, and gage-irons.

The nature of our invention consists in the following:

First. In forming the frame of a cultivator, 'or that part thereof which holds the teeth, of

two pieces of iron or other suitable material, in which we form semicircles or concavities, so that when said pieces are brought 'together by bolts or other means the semicircles therein shall form a circular socket for holding the cultivator-tooth. kThis will be readily understood upon reference to Figs. land 3, Where A A represent the pieces with the semicircles formed therein at a a, Fig. 1, and Fig. 3 represents the same pieces brought together, hold ing the cultivator-tooth in the circular socket '1), formed by ,the semicircles c a aforesaid.

This construction is not merely for the object of forming a socket for inserting and holding the cultivator-tooth, but also for the object of receiving them in such a manner that we are enabled to turn the same therein when desired to set the points thereof straight forward in a line parallel with the center line ot' draft. This object is very desirable in an expanding culti- Vator, where, as the sides thereof are thrown outward or drawn inward, the points of the teeth in the same are (unless they can in some way be set as above described) thrown out of a straight line of draft, and consequently do not perform their full purpose.

Second. It also consists in constructing the cultivator-tooth of thin or plate metal with its foot or lower part of the ordinary shape; but the upper end we bend around in a circle, so that it forms a round, hollow shank, as shown in Fig. 2, which represents the cultivator-tooth, d being the shank of the tooth, and O the foot. This construction is for the purpose of obtaining a light but strong tooth and at the same time we have a construction (from the circular. form of the shank of the tooth) whereby we are enabled to turn the toothin its socket when desired, as and for the purposes just above described.

Third. The nature of ourinvention consists further in the construction of the gage-irons and spring-clamp.; also the arrangement of them, together with the braces and standards.

First. The construction of the gageirons and spring-clamp is as follows, reference being had to Figs. 4, 4', and 5. The gageirons jj, which are for the purpose of expanding and contracting the cultivator, we make in the usual way, with the exception that we flatten and widen out one end of each, and then of the part thus widened out we turn down each edge at about right angles to form a groove, as seen `at letters X, Fig. 4, which'grooves, as is seen in this figure, we form on reverse sides of the irons, so that upon bringing them together the groove of one iron will receive the body of rthe other, as represented at letters K, Fig. 4. The spring-clamp Q, Fig. 5,'is for the purpose of clamping the above gage-irons to hold them at any desired point of contraction or expansion of the cultivator, and is conA structed as follows: The lower end of one ot' the braces, h, Fig. 5, is rst bent so as to stand perpendicularly, and then a portion of this part is so bent upward that its edges are parallel with the edges of the other portion, and present a figure somewhat similar to theletter U. We then put a`hole through the upper parts of this ligure for the purpose of insertL ing a bolt, by which we are enabled to draw them together when desired to clamp or fasten the irons, and thus the clamp is completed. We do not confine ourselves to making this clamp from one end of one of the braces, as

it may be made from a separate piece, and yet effect the same object.

Second. The arrangement of the gage-irons, spring-clamp, braces and standards will be seen in Fig. 7, and is as follows: The gageirons jj, at their outer ends, are attached to the inside of the back end of the cultiVator-frame A A, the one to one side and the other to the opposite side. Their inner ends are then brought together, the groove of one receiving the body of the other, as before described. In this posit-ion, while they support themselves vertically, they keep the cultivatorteeth c in an upright position by holding the frame firmly, so that it cannot twist, and also render nn-V necessary a middle or third beam or pieceto a cultvator used in the ordinary construction of cultivators. To hold the irons at anyvdesired point ot' expansion or oo ntractionfot'v the cultivatcr, instead of' putting holes through and bolting them, as in the usual way, We apply our spring-clampQ, above described, through which said irons pass, as seen in Fig. 7, and

by means ofl the bolt S, which passes through just above and crosswise of the gage-irons jj, We can draw the clamp together and thus clamp and hold firmly the gage-irons at any point desired. The braces 7L then extend upward from the gage-ironsj j, and diagonally to the handles ff, towhich they are attached by the bolts i i, at which point and by the same bolts the upper ends of the standards g g are secured, their lower ends being attached to the sides of the cultivator -frame A A by the bolts fm. This arrangement of the braces and `standards presents a figure somewhat similar to the letter M. The arrangement of these pieces in connection with the gage-irons and clamps renders the whole very substantial.

Having thus described our invention, what we claim, and desire to secure by Letters Patent, is-

The combination of teeth, braces, standards, springclamp,-and gage-irons with the frame of avcultivator, the whole being constructed and arranged in the manner and for the purposes herein set forth.

DAVID B. ROGERS. SEYMOUR ROGERS.v LUMAN ROGERS.

Witnesses:

JOHN MAJOR, J. M. MAJOR. 

